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Face authentication emerges as a powerful method for preventing unauthorized access to mobile devices. It is, however, vulnerable to photo-based forgery attacks (PFA) and videobased forgery attacks (VFA), in which the adversary exploits a photo or video containing the user's frontal face. Effective defenses against PFA and VFA often rely on liveness detection, which seeks to find a live indicator...
In our augmented reality system, the throwing is taken as a main interactive method. So the system must have the ability of action recognition and quick response. The research analyzes the character of throwing, and finds out the law of its velocity changing, then uses convolution filtering to smooth dynamic data. Based on them, the fuzzy synthetic judgment algorithm can be used for recognizing the...
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